Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – Simultaneous severing and shaping – or severing while work...
Reexamination Certificate
2007-11-13
2007-11-13
Johnson, Christina (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
With severing, removing material from preform mechanically,...
Simultaneous severing and shaping, or severing while work...
C451S344000, C264S162000
Reexamination Certificate
active
11289802
ABSTRACT:
A grinding plate for an electric hand grinder has a plate member having an upper plate surface with an upper plate edge, a lower plate surface with a lower plate edge for placement of a grinding means and extending at least partially beyond the upper plate edge, and a side surface extending from the upper plate edge to the lower plate edge, and having a pagoda-shaped contour in a projecting region of the lower plate edge and the grinding plate is produced by a method including punching out the plate body with the upper surface, the lower surface and the side surface from an elastic material in a desired shape; placing a round bar on the upper plate surface along the upper plate edge of the plate body with a parallel distance from it; pressing the round bar into the plate body so that an elastic material of the plate body is squeezed outwardly under the round bar; separating the squeezed out material along an outer edge of the round bar with a separating cut extending perpendicular to the plate surfaces; and removing the round bar from the upper plate surface.
REFERENCES:
patent: 2988835 (1961-06-01), Murphy
patent: 3595111 (1971-07-01), Hershberger
patent: 5626510 (1997-05-01), Bergner et al.
patent: 6443825 (2002-09-01), Schadoffsky et al.
patent: 2001/0055944 (2001-12-01), Moolenaar et al.
patent: 2002/0197940 (2002-12-01), Catalfamo
Godfrey Keith J.
Johnson Christina
Robert & Bosch GmbH
Striker Michael J.
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